4L3I

Structure of the microtubule associated protein PRC1 (Protein Regulator of Cytokinesis 1)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.6005 Å
  • R-Value Free: 0.300 
  • R-Value Work: 0.257 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Marking and Measuring Single Microtubules by PRC1 and Kinesin-4.

Subramanian, R.Ti, S.C.Tan, L.Darst, S.A.Kapoor, T.M.

(2013) Cell 154: 377-390

  • DOI: 10.1016/j.cell.2013.06.021
  • Primary Citation of Related Structures:  4L6Y

  • PubMed Abstract: 
  • Error-free cell division depends on the assembly of the spindle midzone, a specialized array of overlapping microtubules that emerges between segregating chromosomes during anaphase. The molecular mechanisms by which a subset of dynamic microtubules ...

    Error-free cell division depends on the assembly of the spindle midzone, a specialized array of overlapping microtubules that emerges between segregating chromosomes during anaphase. The molecular mechanisms by which a subset of dynamic microtubules from the metaphase spindle are selected and organized into a stable midzone array are poorly understood. Here, we show using in vitro reconstitution assays that PRC1 and kinesin-4, two microtubule-associated proteins required for midzone assembly, can tag microtubule plus ends. Remarkably, the size of these tags is proportional to filament length. We determine the crystal structure of the PRC1 homodimer and map the protein-protein interactions needed for tagging microtubule ends. Importantly, length-dependent microtubule plus-end-tagging by PRC1 is also observed in dividing cells. Our findings suggest how biochemically similar microtubules can be differentially marked, based on length, for selective regulation during the formation of specialized arrays, such as those required for cytokinesis.


    Organizational Affiliation

    Laboratory of Chemistry and Cell Biology, The Rockefeller University, 1230 York Avenue, New York, NY 10065, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Protein regulator of cytokinesis 1
A, B
490Homo sapiensGene Names: PRC1
Find proteins for O43663 (Homo sapiens)
Go to Gene View: PRC1
Go to UniProtKB:  O43663
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A, B
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.6005 Å
  • R-Value Free: 0.300 
  • R-Value Work: 0.257 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 61.205α = 90.00
b = 210.782β = 105.81
c = 112.294γ = 90.00
Software Package:
Software NamePurpose
PHENIXrefinement
AutoSolphasing
HKL-2000data scaling
ADSCdata collection
HKL-2000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-07-17
    Type: Initial release
  • Version 1.1: 2013-08-07
    Type: Database references